Looks like I have a neighbor problem

You might be in for a journey with this guy...I know he only moved in last October but did he have ties to his land before that? How long have you owned your place?

I guess what I am getting at is he may have hunted your place in the past before he either moved in or owned the property. If so that may be why you are having troubles...
Oddly enough he lived 1/2 mile from my house in Springfield before he moved to Ozark. Also, and this is just really weird, before he lived in Springfield he lived across the street from the lady that was the previous owner of the home in Ozark.. in Colorado !